四川盆地下三叠统嘉陵江组储层成岩作用研究
|
摘要
在对四川盆地嘉陵江组沉积背景认识的基础上,通过大量岩芯观察、薄片鉴定,进而进行准确定名并按成岩作用是否对孔缝形成有利及对油气生、运、储是否有贡献,将成岩作用划分出建设性成岩作用(白云石化作用,溶蚀作用——膏溶、岩溶作用,构造破裂作用),破坏性成岩作用(压实、收缩和压溶作用,胶结作用,强重结晶作用,自生矿物的形成作用,溶孔及裂缝的充填作用)两种成岩作用。同时对孔隙成因作出分析,且找出岩石学方面的证据。依据镜下薄片鉴定与有机地化手段相结合,对四川盆地下三叠统嘉陵江组成岩作用作详细研究,并对成岩演化史进行恢复。综合考虑多种因素,不同成岩作用形成成岩期次及与孔隙演化关系,对嘉陵江组成岩作用取得了较全面、正确的认识,为全新认识四川盆地嘉陵江组储集空间提供了有力的地质依据。
On the basis of the recognition of the sedimentary backgroud of Jialing River Formation in Sichuan Basin,by means of massive cores observation and rock thin sections inspection,the types of rocks are accuratly named,diagenesis is grouped into two categaries,i.e.,constructive one(dolomization,dissolution including gypsum dissolution,casting and tectonic cracking)and destructive one(compression,shrinkage and pressure dissolution,cementation,strong recrystallization,the formation of new minerals and the filling of dissolved pores and fractures).The cause of pore formation is analyzed and the evidence of lithology is figured out,According to thin section inspection and oganic geoshemistry research,the diagenesis of Jialing River Formation of lower Triassic in Sichuan Basin is studied in detail and the diagenetic evolution history is reduilt.Based on multi-factors,diagenetic stages and pore space evolution,the diagenesis of the Jialing River Formation is correctly and wholly recognized,which provides a solid foundation for understanding the accumulative spaces of the Formation.
On the basis of the recognition of the sedimentary backgroud of Jialing River Formation in Sichuan Basin,by means of massive cores observation and rock thin sections inspection,the types of rocks are accuratly named,diagenesis is grouped into two categaries,i.e.,constructive one(dolomization,dissolution including gypsum dissolution,casting and tectonic cracking)and destructive one(compression,shrinkage and pressure dissolution,cementation,strong recrystallization,the formation of new minerals and the filling of dissolved pores and fractures).The cause of pore formation is analyzed and the evidence of lithology is figured out,According to thin section inspection and oganic geoshemistry research,the diagenesis of Jialing River Formation of lower Triassic in Sichuan Basin is studied in detail and the diagenetic evolution history is reduilt.Based on multi-factors,diagenetic stages and pore space evolution,the diagenesis of the Jialing River Formation is correctly and wholly recognized,which provides a solid foundation for understanding the accumulative spaces of the Formation.
引文
[1]朱其,李国蓉,乔占峰,等.四川盆地泸州古隆起嘉陵江组储层特征研究[J].四川地质学报,2008,2(1):30-34.
[2]王宓君,包茨,肖明德,等.中国石油地质志(卷十).四川油气区[M].北京:石油工业出版社,l989.
[3]王维斌,苟洪才,邱彬,等.四川盆地东部下三叠统嘉陵江组储层特征[J].天然气工业,2005,25(10):30-32.
[4]张长俊,林雄,黄文明.四川盆地嘉陵江组储层形成与演化的成岩作用研究[R].四川成都:成都理工大学,2006.
[5]李其荣,王廷栋,李延钧,等.泸州古隆起嘉陵江组油气成藏期的确定[J].天然气工业,2005,25(7):8-10.
[6]车廷竹,孪其荣,畅坚,等.泸州古隆起嘉陵江组油气运聚规律与成藏[J].石油勘探与开发,2005,32(5):20-24.
[7]黄文明,刘树根,张长俊,等.川中磨溪构造下三叠统嘉二段储集物性及其控制因素[J].成都理工大学学报(自然科学版),2007,34(2):135-142.
[8]谭秀成,邹娟,李凌,等.磨溪气田嘉二段陆表海型台地内沉积微相研究[J].石油学报,2008,29(2):219-225.
[9]Blomeier D P G,Reijmer J J G.Facies architecture of an Early Jurassic carbonate platform slope(Jbel Bou Dahar,High Atlas,Morocco)[J].Journal of Sedimentary Re-search,2002,72(4):462-475.
[10]郭正吾,邓康龄,韩永辉,等.四川I盆地形成与演化[M].北京:地质出版社,1994.
[11]曹剑,谭秀成,陈景山.川西南犍为地区下三叠统嘉陵江组沉积相及其演化特征[J].高校地质学报,2004,10(3):429-439.
[12]周跃宗,雷卞军,赵永刚,等.川中-川南过渡带嘉二段成岩作用及其储层发育[J].西南石油学院学报,2006,28(2):11-15.
[2]王宓君,包茨,肖明德,等.中国石油地质志(卷十).四川油气区[M].北京:石油工业出版社,l989.
[3]王维斌,苟洪才,邱彬,等.四川盆地东部下三叠统嘉陵江组储层特征[J].天然气工业,2005,25(10):30-32.
[4]张长俊,林雄,黄文明.四川盆地嘉陵江组储层形成与演化的成岩作用研究[R].四川成都:成都理工大学,2006.
[5]李其荣,王廷栋,李延钧,等.泸州古隆起嘉陵江组油气成藏期的确定[J].天然气工业,2005,25(7):8-10.
[6]车廷竹,孪其荣,畅坚,等.泸州古隆起嘉陵江组油气运聚规律与成藏[J].石油勘探与开发,2005,32(5):20-24.
[7]黄文明,刘树根,张长俊,等.川中磨溪构造下三叠统嘉二段储集物性及其控制因素[J].成都理工大学学报(自然科学版),2007,34(2):135-142.
[8]谭秀成,邹娟,李凌,等.磨溪气田嘉二段陆表海型台地内沉积微相研究[J].石油学报,2008,29(2):219-225.
[9]Blomeier D P G,Reijmer J J G.Facies architecture of an Early Jurassic carbonate platform slope(Jbel Bou Dahar,High Atlas,Morocco)[J].Journal of Sedimentary Re-search,2002,72(4):462-475.
[10]郭正吾,邓康龄,韩永辉,等.四川I盆地形成与演化[M].北京:地质出版社,1994.
[11]曹剑,谭秀成,陈景山.川西南犍为地区下三叠统嘉陵江组沉积相及其演化特征[J].高校地质学报,2004,10(3):429-439.
[12]周跃宗,雷卞军,赵永刚,等.川中-川南过渡带嘉二段成岩作用及其储层发育[J].西南石油学院学报,2006,28(2):11-15.
目录